Death of the cells in a bone or joint due to a loss of blood flow. Avascular necrosis may result from blockage of blood vessels inside a weakened and collapsing bone.
Loss of blood supply to the bone. Without blood, the bone tissue dies making the bone weak and more likely to collapse. Avascular necrosis can be a side effect of long term or high dose steroid treatment. It happens most often in the hip bones.
Also referred to as osteonecrosis. A disease resulting from temporary or permanent loss of blood supply to the bone. It is a possible late complication that may be associated with Highly Active Antiretroviral Therapy (HAART). The most common site is the femoral head. Many patients have other risk factors including alcohol abuse, hyperlipidemia, corticosteroid use, and hypercoagulability (increased clotting ability of the blood).
Tissue death resulting from inadequate blood supply to the affected part of a bone
Cell death due to toxins, physical damage or lack of oxygen. The dying cell releases enzymes that may damage neighboring cells.
death of tissue or bone due to lack of blood supply
The loss of the normal blood supply to a bone, leading to the destruction of part or all of The effected bone. In the foot and ankle most common in the talus and second metatarsal head.
A disease caused by the temporary or permanent loss of blood supply to bones; bone lacking blood can collapse and die
Tissue death resulting from a lack of blood supply to the area.
death of tissue due to depletion of blood supply.
Death of a part due to lack of circulation.
also called osteonecrosis; bone disease that results in temporary or permanent loss of blood supply to the bone; when blood supply is cut off, the bone tissue dies and the bone can potentially collapse.
death of tissue due to poor blood supply
death of bone and cartilage tissue due to impaired or disrupted blood supply (as that caused by traumatic injury or disease) and marked by severe pain in the affected region and by weakened bone that may flatten and collapse. Also called osteonecrosis.
The death of the body's bone. It's a rare complication of some drug therapies, including use of interferon, and is seen in patients whose platelet count remains abnormally high despite treatment.
(a-absent; vascular-blood supply; necrosis: death of a tissue) Any tissue devoid of nutrition will die; medically this cell death is called as necrosis. Avascular necrosis is death of bone due to loss of its blood supply. Bones are also living tissue supplied by blood vessels. When a fracture or a dislocation disrupts this nutritional supply the bone dies. This usually occurs in a fracture of the neck of the femur bone; here the head of femur undergoes necrosis. Adults between ages 20-40 are most susceptible. Other causes may be steroid therapy, Alcoholism, patients on renal dialysis, anti cancer drugs etc. but mostly the cause is unknown
(AVN) A condition in which the poor blood supply to an area of bone leads to bone death. The head of the femur is often the site of AVN. Also called avascular necrosis and osteonecrosis.
death of tissue caused by the lack of blood supply.
Avascular necrosis is a disease resulting from the temporary or permanent loss of the blood supply to the bones. Without blood, the bone tissue dies and causes the bone to collapse. If the process involves the bones near a joint, it often leads to collapse of the joint surface.